<template>
  <el-container class="home-container">
    <el-header>
        <div>
            <img src="../assets/img/houtai.png" alt=""  style="height:50px;width:50px">
            <span>电商管理系统</span>
        </div>
      <el-button type="info" @click="loginout">退出</el-button></el-header
    >
    <el-container>
      <el-aside :width="isCollapse?'64px':'200px'">
          <!-- 侧边 -->
          
          <!-- 菜单的折叠和展开 -->
          <div class="toggele-button"
          @click="toggeleCollapse">
            |||
          </div>
          <el-menu
      background-color="#333744"
      text-color="#fff"
      active-text-color="#409EFF"
      :unique-opened="true"
      :collapse="isCollapse"
      :collapse-transition="false"
      :router="true"
      :default-active="activePath"
      >
      <!-- :default-active="$route.path" -->
      <!-- 一级菜单 -->
      <el-submenu :index="item.id+''" v-for="item in meanlist" :key="item.id">
          <!-- 一级菜单模板 -->
        <template slot="title">
            <!-- 图标 -->
          <i :class="iconsObj[item.id]"></i>
          <!-- 文本 -->
          <span>{{item.authName}}</span>
        </template>

        <!-- 二级菜单 -->
        <el-menu-item :index="'/'+subItem.path+''" v-for="subItem in item.children" @click="saveNavState('/'+subItem.path)">
            <template slot="title">
            <!-- 图标 -->
          <i class="el-icon-menu"></i>
          <!-- 文本 -->
          <span>{{subItem.authName}}</span>
        </template>
        </el-menu-item>
      </el-submenu>
      </el-menu-item>
    </el-menu>
      </el-aside>
      <el-main>
        <router-view></router-view>
      </el-main>
    </el-container>
  </el-container>
</template>

<script>
export default {
  data() {
    return {
      // 左侧菜单数据
      meanlist: [],
      iconsObj: {
        125: "iconfont icon-users",
        103: "iconfont icon-tijikongjian",
        101: "iconfont icon-shangpin",
        102: "iconfont icon-danju",
        145: "iconfont icon-baobiao",
      },
      isCollapse: false,
      activePath:''
    };
  },
  methods: {
    loginout() {
      //清空token
      window.sessionStorage.clear();
      // 重定向到登录页
      this.$router.push("/login");
    },
    // 获取菜单
    async getMenuList() {
      const { data: res } = await this.$http.get("menus");
      if (res.meta.status !== 200)
        return this.$message.console.error(res.meta.msg);
      this.meanlist = res.data;
      // console.log(res);
    },
    // 菜单的折叠
    toggeleCollapse() {
      this.isCollapse = !this.isCollapse;
    },
    // 保存链接的激活状态
    saveNavState(activePath){
      window.sessionStorage.setItem('activePath',activePath)
      this.activePath=activePath
    }
  },
  created() {
    this.getMenuList();
    this.activePath=window.sessionStorage.getItem.activePath
  },
};
</script>

<style lang='less' scoped>
.home-container {
  height: 100%;
}
.el-header {
  background-color: #373d41;
  display: flex;
  justify-content: space-between;
  padding-left: 0;
  align-items: center;
  color: #fff;
  font-size: 20px;
  > div {
    display: flex;
    align-items: center;
    span {
      margin-left: 15px;
    }
  }
}
.el-aside {
  background-color: #333744;
  .el-menu {
    border-right: none;
  }
}
.el-main {
  background-color: #eaedf1;
}
.iconfont {
  margin-right: 5px;
}
.toggele-button {
  background-color: #4a5064;
  color: #fff;
  font-size: 10px;
  text-align: center;
  line-height: 24px;
  letter-spacing: 0.2em;
  cursor: pointer;
}
</style>